Hey Guys, I am Nuts and Bolts. I made a Project; I call it an Animatronic Hand.

What is Animatronics?

Animatronics is the cross between animation and electronics. Basically, Animatronics is a mechanized puppet. It can be remotely controlled or preprogrammed. Animatronics refers to the use of robotic devices to emulate a human or an animal, or bring lifelike characteristics to an otherwise inanimate object. This is a technique of making and operating lifelike robots, typically for use in film or other entertainment. Animatronics is a multi-disciplinary field which integrates anatomy, robots, mechatronics, and puppetry resulting in lifelike animation.

Design Concept

In this work, the Mechatronic based Animatronic Hand is controlled by the position data taken from the Glove. Usually people use Flex Sensors for this project but I have used Potentiometers. So, Potentiometers are mounted on the Glove to capture finger bending of the Human Hand.

The unique aspect of this project lies in the sensor choice. I chose Potentiometers instead of flex sensors due to their high durability and stable electrical values when integrated into the glove's joints to detect human finger movements.

Key Components and Engineering Operation:

1. Input Layer (Glove): Potentiometers are installed at the joints of the glove. When a finger is bent, the resistance value changes according to the actual angle of movement.
2. Processing Layer (Microcontroller): The Angular Movement of human hand's fingers are perceived and processed by a Microcontroller (e.g., Arduino). It receives analog signals from the Potentiometers and processes them through an algorithm to convert them into control signals.
3. Output Layer (Robotic Hand): The Robotic Hand is controlled by actuating Servo Motors. These servos function like the muscles of the robotic hand, to pull tendons and move the hand precisely according to the angles received from the glove.

It has seen that robotic hand can simulate the movement of the human hand that put on the glove.

Code Logic Analysis

To enable the robotic hand to move smoothly like a human hand, the program's logic operates via Real-time Mapping as follows:

• Analog Read: Reads voltage values from the Potentiometer (0-1023 units for a 10-bit ADC).
• Data Scaling: Uses the map() function to convert the data range from the Potentiometer's Analog values into Servo Motor rotation angles (typically 0-180 degrees) to correspond with the actual finger bending range.
• Signal Output: Sends PWM (Pulse Width Modulation) signals to each Servo to control the synchronized position of the fingers.

Benefits and Future Applications

This robotic hand can be used not only in automation, but also handling operations in dangerous environment for people. I wanted to create a hand which could have many advantages like:

1. Medical Field: It can be used as a powerful aid for the physically challenged or for use in physical therapy.
2. Safety and Security: Can be used for diffusion of Bombs where there is a high risk of lives.
3. Space Exploration: Can be used in space for repairs of space station in areas difficult for humans to access.
4. Research: It’s a research project for the humanoid robotic.
5. Domestic Applications: Can also be used for household applications.
6. Industrial Applications: Can be used in the Fields of Defence and Chemicals for tasks involving handling objects in hazardous environments.

The Animatronic Hand project is just the beginning of proving that technology and engineering can turn imagination into tangible reality!